seems like just a talent acquisition to me
That way their users have a fighting chance at a smooth transition, and the technical contribution you made can continue.
On the other hand, starting with that mentality is probably bad. c.f. pg's "do something you think is good for the world"
Though, I always wondered why drop.io got any attention. Upload thing. Get URL. Share URL? Optional paywall behind URL. Did they have other features?
Don't complain about others' successes. Learn from this that a nice interface for something simple is often enough, and go find a market where you can do the same thing, and get rich :)
(Note that I've used it to a very limited extent. But even if they have other features, my understanding was that the main value proposition was its simple, pleasant interface.)
When an upload finished, many of my friends / contractors didn't know you'd need to refresh the page to view files. I'd sometimes find two or three copies of the same file in a given drop.
My drop had an admin password, but also a manager password (which were different, but would presumably be used by the same person).
Even browsing for files to upload was more difficult than it should have been. Once a file was selected some users assumed it was being uploaded already.
These were manageable interface problems for me, but required delineated instructions to the "average user."